You could call it better than arcade perfect. 60fps, no pop up, more vibrant colours.

If you've got an online subscription, you can download the Famicom games as well. Only one or two games are exclusive but it's worth it for Joy Mech Fight alone. Search the Japanese e-shop for "Nintendo Switch Online" and open the app with your UK account.

McWill, Freckleshack and Midwest mods use an LCD with a matching square(ish) ratio. 1:2 scaling, but none of the ghosting of the 101. The Midwest one is “transflective”, it has a reflective layer and can be used in bright light when the backlight is turned off.